help im an idiot

This is a discussion on help im an idiot within the C++ Programming forums, part of the General Programming Boards category; please help me. this is my first day learning about programming and im stuck on lesson 2 of the online ...

help im an idiot

please help me. this is my first day learning about programming and im stuck on lesson 2 of the online tuturial on this website. i havent done any courses or read any books yet. but when i go to do the example programme and compile it comes up with this error: [Warning] In function `int main()':
`cout' undeclared (first use this function)
(Each undeclared identifier is reported only
`cin' undeclared (first use this function)
even when i copy and paste the programme.

the programme is this:

Code:

include <iostream.h>
int main() //Most important part of the program!
{
int age; //Need a variable...
cout<<"Please input your age: "; //Asks for age
cin>>age; //The input is put in age
if(age<100) //If the age is less than 100
{
cout<<"You are pretty young!"; //Just to show it works
}
else if(age==100) //I use else just to show an example
{
cout<<"You are old"; //Just to show you it works...
}
else
{
cout<<"You are really old"; //Executed if no other statement is executed
}
return 0;
}

#include <iostream>
using namespace std;
int main()//Most important part of the program!
{
int age;//Need a variable...
cout<<"Please input your age: ";//Asks for age
cin>>age;//The input is put in age
if(age<100)//If the age is less than 100
{
cout<<"You are pretty young!"; //Just to show it works
}
else if(age==100)//I use else just to show an example
{
cout<<"You are old";//Just to show you it works...
}
else
{
cout<<"You are really old";//Executed if no other statement is executed
}
return 0;
}

#include <iostream>
#include <stblib.h>
using namespace std;
int main() //Most important part of the program!
{
int age; //Need a variable...
cout<<"Please input your age: "; //Asks for age
cin>>age; //The input is put in age
if(age<100) //If the age is less than 100
{
cout<<"You are pretty young!"; //Just to show it works
}
else if(age==100) //I use else just to show an example
{
cout<<"You are old"; //Just to show you it works...
}
else
{
cout<<"You are really old"; //Executed if no other statement is executed
}
return 0;
}

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